On a scale from "nah man let that sh*t go" to "I remember the name and face of everyone who ever did me wrong since birth" how petty are you?

My level- every night before bed I still mentally curse out the older guy who assaulted me back when I was in daycare leaving a scar on my face and arm as well as long lasting psychological damage. That's twenty one years of holding a grudge. I'm not usually THAT petty but for that one person I'll make an exception because that dude was and still is a complete psycho.